Tourniquet, Petit's type, brass screw, leather pad and strapping, c. 1860 Tourniquet, Petit's type 1801-1900
Tourniquet, Petit's type, brass screw device, and pad on an adjustable strap, by Ferguson, c. 1840 Tourniquet, Petit's type 1811-1860
Petit's tourniquet with brass screw and pad, European, 1870-1930 Petit's tourniquet with brass screw and pad 1870-1930